CVE-2021-22284

SECURITY - OPC Server for AC 800M - Remote Code Execution Vulnerability

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Incorrect Permission Assignment for Critical Resource vulnerability in OPC Server for AC 800M allows an attacker to execute arbitrary code in the node running the AC800M OPC Server.

Una vulnerabilidad de Asignación de Permisos Incorrecta para Recursos Críticos en el Servidor OPC para AC 800M permite a un atacante ejecutar código arbitrario en el nodo que ejecuta el Servidor OPC AC800M

*Credits: ABB thanks William Knowles at Applied Risk for helping to identify the vulnerabilities and protecting our customers.

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-05 CVE Reserved
2022-02-04 CVE Published
2023-07-18 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-732: Incorrect Permission Assignment for Critical Resource

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://search.abb.com/library/Download.aspx?DocumentID=7PAA000908&LanguageCode=en&DocumentPartId=&Action=Launch	2022-02-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Abb Search vendor "Abb"		Opc Server For Ac 800m Search vendor "Abb" for product "Opc Server For Ac 800m"				>= 5.1.0-0 < 6.0.0-4 Search vendor "Abb" for product "Opc Server For Ac 800m" and version " >= 5.1.0-0 < 6.0.0-4"		-		Affected